Description Of And How To Avoid Error And Abnormality Indications - Sharp SD-AT100H Service Manual

DESCRIPTION OF AND HOW TO AVOID ERROR AND ABNORMALITY INDI-
CATIONS
Error
NO DISC • A disc is not loaded.
• The disc cannot be recognized due to scratches
or dirt.
• The disc is loaded upside down.
NO PLAY • Unplayable disc
• The disc cannot be played correctly due to
scratches or dirt.
• The disc does not satisfy the standards.
READ err
• Unplayable disc
• Data cannot be read since the disc is scratched
or dirty.
• The disc does not satisfy the standards.
Er-CD01 • The pick position detection switch of CD/DVD
mechanism does not work (defective
mechanism).
Er-CD30
• The DVD unit and microcomputer do not
communicate properly.
• The DVD unit is defective.
• The unit is used where external noise is picked
up.
• The power supply picks up noise.
DSP malfunction
DSP NG
• The unit is used where external noise is picked
up.
• The power supply picks up noise.
No Signal • Signals are not sent to the external digital input
socket (optical).
• Signals input to the external digital input socket
(optical) have unplayable formats.
TEMP • The temperature of the power supply is too
high.
Er-AP02
Er-AP03 Amplifier is defective
(A/D reset monitor detects an error.)
Er-AP14 ICs of A/D and D/A converters cannot
communicate properly.
Cause Preventive measure
Press the Open/Close key to open the cover and load a disc.
Clean the disc.
Load the disc in a proper direction.
Load a playable disc.
Clean the disc.
Load a playable disc.
Clean the disc.
Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired at the dealer you purchased
it from.
• Move the unit away from the noise source if located near.
• Use another AC outlet.
• Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired at the dealer you purchased
it from.
• Move the unit away from the noise source if located near.
• Use another AC outlet.
• Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired by the dealer you
purchased it from.
Check the connection and signals at the external digital input
socket (optical).
Before use, set the unit to the stand-by mode and wait for a
while.
If this occurs frequency, have it repaired by the dealer you
purchased it from.
Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired by the dealer you purchased
it from.
• Move the unit away from the noise source if located near.
• Use another AC outlet.
• Set the unit to the stand-by mode and turn it on again. If it does
not restore the unit, have it repaired by the dealer you
purchased it from.
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SD-AT100H